proper suggests a suitability through essential nature or accordance with custom.

PROPER definition: 1. real, satisfactory, suitable, or correct: 2. showing standards of behaviour that are socially…. Learn more.

You use proper to describe things that you consider to be real and satisfactory rather than inadequate in some way. Two out of five people lack a proper job.

Definition of proper adjective from the Oxford Advanced Learner's Dictionary. [only before noun] (especially British English) right, appropriate or correct; according to the rules. We should have had a …

(immediately postpositive) (of an object, quality, etc) referred to or named specifically so as to exclude anything not directly connected with it: his claim is connected with the deed proper

Proper is an adjective that describes something that is appropriate, adheres to polite behavior, or is correct. Proper is also used in grammar to refer to nouns that identify specific people, places, or things.

We sure have messed things up proper. [= thoroughly, completely] They beat us good and proper.